For a car that has only been available in less than half of the United States, the Bolt EV has been selling pretty well, at least compared with Chevy's other plug-in – the Volt hybrid. From January 2017 to May 2017, the Bolt EV has sold 5,950 units. The Volt, which is available everywhere, has sold 9,187 units in the same time frame. Expanding the Bolt EV's availability will likely improve the car's sales substantially.